Java UUID的使用

 

public class ecai {

  public static void main(String[] args) {
         UUID uuid = UUID.randomUUID();
         System.out.println(uuid);
         UUID ou = UUID.randomUUID();
         System.out.println(ou);
         UUID uu = UUID.randomUUID();
         System.out.println(uu);   
         
         
     }
  
 } 

结果如下：

5f939183-cba3-49cb-903a-2abfb2f81453
a6c8efc3-b004-439f-bbcb-baff9dcf3339
6432bcf3-ca18-411d-b18f-cd86d45b067c